x2 + 9 + 20 = x2 + 29, and can not be factored.
I assume though that you mis-wrote your question, and what you in fact want to ask is how to factor x2 + 9x + 20.
In that case, the answer is (x + 4)(x + 5).
Chat with our AI personalities
x2-6x+9 = (x-3)(x-3) when factorised.
If you mean: x2+9x+20 then it is (x+4)(x+5) = 0 when factored
(x - 7)(x - 9)
(X-9)2
(x - 3)(x - 3)